CVE-2024-26971
📋 TL;DR
This CVE describes an out-of-bounds read vulnerability in the Linux kernel's Qualcomm GCC IPQ5018 clock driver. Missing termination in frequency table arrays could allow attackers to read kernel memory beyond the array boundaries. This affects Linux systems using the affected Qualcomm IPQ5018 clock driver.
💻 Affected Systems
- Linux kernel with Qualcomm GCC IPQ5018 clock driver
📦 What is this software?
Linux Kernel by Linux
The Linux Kernel is the core component of the Linux operating system, serving as the critical interface between computer hardware and software processes. As the heart of millions of servers, cloud infrastructure, embedded systems, Android devices, and IoT deployments worldwide, the Linux Kernel mana...
Learn more about Linux Kernel →Linux Kernel by Linux
The Linux Kernel is the core component of the Linux operating system, serving as the critical interface between computer hardware and software processes. As the heart of millions of servers, cloud infrastructure, embedded systems, Android devices, and IoT deployments worldwide, the Linux Kernel mana...
Learn more about Linux Kernel →Linux Kernel by Linux
The Linux Kernel is the core component of the Linux operating system, serving as the critical interface between computer hardware and software processes. As the heart of millions of servers, cloud infrastructure, embedded systems, Android devices, and IoT deployments worldwide, the Linux Kernel mana...
Learn more about Linux Kernel →⚠️ Risk & Real-World Impact
Worst Case
Kernel memory disclosure leading to information leakage, potential privilege escalation if combined with other vulnerabilities, or system instability/crash.
Likely Case
Information disclosure of kernel memory contents, potentially revealing sensitive data or memory addresses that could aid further exploitation.
If Mitigated
Limited impact with proper kernel hardening and memory protection mechanisms in place.
🎯 Exploit Status
Exploitation requires local access and ability to interact with the clock driver interface. No public exploits known at this time.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Linux kernel versions containing the fix commits: 50c3acd460551cdf9d8ac6fe0c04f2de0e8e0872, 90ad946fff70f312b8d23226afc38c13ddd88c4b, b0cf3d200e8a72b6d28e6e088c062b4a98cb5eaf, c8f4bef0667947b826848db1c45a645f751357c1
Vendor Advisory: https://git.kernel.org/stable/c/50c3acd460551cdf9d8ac6fe0c04f2de0e8e0872
Restart Required: Yes
Instructions:
1. Update to a Linux kernel version containing the fix commits. 2. Rebuild kernel if compiling from source. 3. Reboot system to load patched kernel.
🔧 Temporary Workarounds
Disable vulnerable driver module
linuxBlacklist or disable the gcc-ipq5018 module if not required
echo 'blacklist gcc-ipq5018' >> /etc/modprobe.d/blacklist.conf
rmmod gcc-ipq5018
🧯 If You Can't Patch
- Restrict local user access to systems using vulnerable hardware
- Implement strict access controls and monitoring for kernel module interactions
🔍 How to Verify
Check if Vulnerable:
Check if system uses Qualcomm IPQ5018 hardware and has the vulnerable driver loaded: lsmod | grep gcc-ipq5018Check Version:
uname -rVerify Fix Applied:
Check kernel version includes fix commits or verify driver version after update📡 Detection & Monitoring
Log Indicators:
- Kernel oops messages
- Driver-related errors in dmesg
- Unexpected memory access patterns
Network Indicators:
- None - local vulnerability only
SIEM Query:
Search for kernel panic or oops messages containing 'gcc-ipq5018' or 'out of bounds'🔗 References
- https://git.kernel.org/stable/c/50c3acd460551cdf9d8ac6fe0c04f2de0e8e0872
- https://git.kernel.org/stable/c/90ad946fff70f312b8d23226afc38c13ddd88c4b
- https://git.kernel.org/stable/c/b0cf3d200e8a72b6d28e6e088c062b4a98cb5eaf
- https://git.kernel.org/stable/c/c8f4bef0667947b826848db1c45a645f751357c1
- https://git.kernel.org/stable/c/50c3acd460551cdf9d8ac6fe0c04f2de0e8e0872
- https://git.kernel.org/stable/c/90ad946fff70f312b8d23226afc38c13ddd88c4b
- https://git.kernel.org/stable/c/b0cf3d200e8a72b6d28e6e088c062b4a98cb5eaf
- https://git.kernel.org/stable/c/c8f4bef0667947b826848db1c45a645f751357c1
